Patents by Inventor Tadashi Takahashi

Tadashi Takahashi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8464557
    Abstract: A method of producing an optical fiber preform includes preparing a glass preform that has a hole extending in a longitudinal direction formed on one end of the glass preform in such a manner that a length of the hole is equal to or less than half of an entire length of the glass preform, synthesizing a porous glass preform by depositing glass particles on an outer circumference of the glass preform having the hole formed on the end, and sintering the porous glass preform after arranging the porous glass preform in such a manner that the end having the hole formed thereon points downward and the hole is open to the air.
    Type: Grant
    Filed: October 24, 2011
    Date of Patent: June 18, 2013
    Assignee: Furukawa Electric Co., Ltd.
    Inventors: Taeko Shibuta, Tadashi Takahashi, Takeshi Yagi
  • Patent number: 8337952
    Abstract: An object of the present invention is to provide a single-phase film of a metal sulfide with good quality, and a method for preparing a metal sulfide film at a low cost in a convenient manner. The present invention provides a preparation method of a metal sulfide film, comprising the steps of providing metal halide, such as iron halide (FeCl3, FeI3, FeBr3, FeCl2, FeI2 and FeBr2), as a first raw material and a thioamide compound, such as thioacetamide, as a second raw material, preferably vaporizing these raw materials and reacting them at atmospheric pressure; and a metal sulfide film prepared by this method.
    Type: Grant
    Filed: August 27, 2003
    Date of Patent: December 25, 2012
    Assignee: Suzuki Motor Corporation
    Inventors: Tadashi Takahashi, Naoyuki Takahashi, Takato Nakamura
  • Publication number: 20120261398
    Abstract: A vehicle heater control apparatus variably contras electric power to be supplied to a heater with an inexpensive configuration and simple control. The vehicle heater control apparatus is provided in a vehicle including an engine control system, the engine control system including: an intake air temperature sensor for detecting an intake air temperature; and a speed sensor for detecting a traveling state of the vehicle, the engine control system using the intake air temperature and the traveling state to control drive of the engine, and the vehicle heater control apparatus includes a heater control portion for variably controlling electric power to be supplied to a warmer provided to a heated part of the vehicle based on the intake air temperature and the traveling state.
    Type: Application
    Filed: October 4, 2011
    Publication date: October 18, 2012
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Tadashi TAKAHASHI, Yosuke FUKUZAWA
  • Publication number: 20120118019
    Abstract: A method of producing an optical fiber that has a hole extending in a longitudinal direction includes preparing a glass preform that has a hole extending in a longitudinal direction, synthesizing a porous preform layer by depositing silica-based glass particles on an outer circumference of the glass preform, dehydrating the porous preform layer, sintering the dehydrated porous preform layer under a reduced pressure so that the porous preform layer becomes a translucent glass preform layer that contains closed pores, and drawing a translucent glass preform that includes the glass preform and the translucent glass preform layer so that the translucent glass preform layer becomes a transparent glass layer.
    Type: Application
    Filed: November 10, 2011
    Publication date: May 17, 2012
    Applicant: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Tadashi TAKAHASHI, Taeko Shibuta, Takeshi Yagi
  • Publication number: 20120118020
    Abstract: A method of producing an optical fiber preform includes preparing a glass preform that has a hole extending in a longitudinal direction formed on one end of the glass preform in such a manner that a length of the hole is equal to or less than half of an entire length of the glass preform, synthesizing a porous glass preform by depositing glass particles on an outer circumference of the glass preform having the hole formed on the end, and sintering the porous glass preform after arranging the porous glass preform in such a manner that the end having the hole formed thereon points downward and the hole is open to the air.
    Type: Application
    Filed: October 24, 2011
    Publication date: May 17, 2012
    Applicant: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Taeko SHIBUTA, Tadashi Takahashi, Takeshi Yagi
  • Publication number: 20110070579
    Abstract: The objective is to provide a method for rapidly, and highly accurately performing genetic detection of the cyclopiazonic acid-producing ability in a strain belonging to genus Aspergillus, etc. as well as a transformant (strain), etc. that does not produce cyclopiazonic acid or a precursor thereof, cycloacetoacetyl L-tryptophan (CAT). A polynucleotide encodes the following polypeptides: (1) a polypeptide comprising the amino acid sequence depicted in SEQ ID NO: 2; (2) a polypeptide comprising an amino acid sequence with one or several amino acids deleted, substituted or added in the amino acid sequence depicted in SEQ ID NO: 2 and having a polyketide synthase-nonribosomal peptide synthetase activity; or (3) a polypeptide having 90% or more homology (identity) as an overall average with the amino acid sequence depicted in SEQ ID NO: 2 and having a polyketide synthase-nonribosomal peptide synthetase activity.
    Type: Application
    Filed: October 16, 2008
    Publication date: March 24, 2011
    Inventors: Masafumi Tokuoka, Tadashi Takahashi, Yasuji Koyama, Isao Fujii, Yasuyo Seshime
  • Publication number: 20100315663
    Abstract: A printing control apparatus for printing an image on a recording medium of a plurality of types of recording mediums set in any of a plurality of storage units by conveying the recording medium to a printing position includes a determination unit configured to determine a used amount for each type of recording medium, and a display control unit configured to display on a display device information for guiding a high usage type recording medium to be set in a storage unit which has a short conveyance distance to the printing position among the plurality of the storage units based on the used amounts determined by the determination unit.
    Type: Application
    Filed: May 21, 2010
    Publication date: December 16, 2010
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Tadashi Takahashi
  • Publication number: 20100316426
    Abstract: A method for controlling printing control apparatus for printing an image on any of a plurality of recording media each set in a plurality of storage units includes inputting a plurality of print jobs, and determining an execution order of the plurality of print jobs in a range in which printing is consecutively executed on the recording medium fed from the same storage unit based on a type of the recording medium corresponding to each of the input plurality of print jobs, and in which each of the input print jobs is not postponed more than a predetermined condition.
    Type: Application
    Filed: June 11, 2010
    Publication date: December 16, 2010
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Tadashi Takahashi
  • Patent number: 7853106
    Abstract: An endoscope system comprises an electric scope and a light source apparatus. The light source apparatus has a light source and a light control apparatus. The light control apparatus adjusts a quantity of light that is incident to the electric scope, based on a comparison between a scope characteristic that indicates a relative value of the quantity of light that can be incident to the electric scope and a light source total characteristic that indicates a relative value of the quantity of the light radiated from the light source to the electric scope.
    Type: Grant
    Filed: April 18, 2007
    Date of Patent: December 14, 2010
    Assignee: Hoya Corporation
    Inventors: Tadashi Takahashi, Nobuhiro Tani
  • Patent number: 7792972
    Abstract: In a wide area Ethernet network, an edge side gateway (EGW) acquires layer 2 tunneling control information from an authentication server when a PADI is received from a user terminal, stores the correspondence between the source address of the PADI and the layer 2 tunneling control information in its management table, encapsulates the PADI in accordance with the layer 2 tunneling control information, and transmits the encapsulated PADI packet to the wide area Ethernet network. A core side gateway (CGW) having received the encapsulated PADI packet stores the correspondence between the tunneling control information and the source address extracted from the received packet in its management table, and forwards the PADI obtained by decapsulating the received packet to a broadband access server. Thereafter, each of the EGW and CGW forward received packets for the user after converting their format by referencing to the management tables.
    Type: Grant
    Filed: June 22, 2007
    Date of Patent: September 7, 2010
    Assignee: Hitachi, Ltd.
    Inventors: Masanori Kamata, Hiroaki Miyata, Tadashi Takahashi
  • Publication number: 20100146096
    Abstract: A communication system controls connection to the interface, such as an IP line to which a subscriber terminal connects, according to the information in the tables in which information is registered and updated, wherein the registered and updated information includes information as to which line type, ISDN line or analog line, is used and as to which high way (HW) of a time-division switch (TSW) of a media gateway (management device) is selected for providing TSs (timeslots) for use in the connection, as well as subscriber information on services for which a subscriber contracts.
    Type: Application
    Filed: November 25, 2009
    Publication date: June 10, 2010
    Inventors: Tadashi Takahashi, Hiroaki Miyata, Koji Nishii
  • Patent number: 7733859
    Abstract: A packet forwarding apparatus with a function of registering packet forwarding control information for each user terminal into a user management table during PPPoE connection and authentication phases in which the apparatus carries out predetermined communication procedures with each user terminal. During DHCP and IP forwarding phases following the authentication phase, the packet forwarding apparatus controls packet forwarding based on the user management table. Packets are forwarded in the form of PPPoE frame until the authentication phase is completed and packets are forwarded in the form of Ethernet frame in the DHCP and IP forwarding phases.
    Type: Grant
    Filed: May 21, 2007
    Date of Patent: June 8, 2010
    Assignee: Hitachi, Ltd.
    Inventors: Tadashi Takahashi, Hiroaki Miyata, Takashi Yokoyama, Masanori Kamata
  • Patent number: 7559889
    Abstract: An endoscope includes a storage device. The storage device is configured to store ownership information. The ownership information indicates a term for which the endoscope is allowed to be utilized.
    Type: Grant
    Filed: February 28, 2006
    Date of Patent: July 14, 2009
    Assignee: Hoya Corporation
    Inventor: Tadashi Takahashi
  • Publication number: 20090035863
    Abstract: In order to efficiently delete a large chromosomal region with a length of from several tens to hundreds kb such as a cluster of biosynthesis genes encoding a toxic substance such as Aflatoxin, the present invention provides a method for the deletion of a large chromosomal region comprising transforming a transformant having an increased frequency of homologous recombination due to suppression of a Ku gene, which is a mitosporic filamentous fungus belonging to Trichocomaceae with a vector for the deletion of a chromosomal region, which comprises a pair of homologous region arms having a nucleotide sequence that is homologous with a fragment at either end of said chromosomal region, and deleting the chromosomal region by means of homologous recombination between the resulting transformant and said vector.
    Type: Application
    Filed: April 24, 2008
    Publication date: February 5, 2009
    Applicant: NODA INSTITUTE FOR SCIENTIFIC RESEARCH
    Inventors: Tadashi Takahashi, Yasuji Koyama
  • Publication number: 20090011508
    Abstract: The purpose of the present invention is therefore to provide a transformant which will not produce a toxic substance such as Aflatoxin even after being manipulated with genetic engineering by efficiently deleting a large chromosomal region with a length of from several tens to hundreds kb such as a cluster of biosynthesis genes encoding the toxic substances such as Aflatoxin. The present invention is related to a method for the production of a strain having a deleted region in chromosome using a transformant having an increased frequency of homologous recombination due to suppression of a Ku gene, which is a mitosporic filamentous fungus belonging to Trichocomaceae, comprising transforming said transformant so as to include a homologous region in both ends of a chromosomal region to be deleted, and deleting the chromosomal region by means of homologous recombination based on said homologous region.
    Type: Application
    Filed: February 22, 2007
    Publication date: January 8, 2009
    Applicant: NODA INSTITUTE FOR SCIENTIFIC RESEARCH
    Inventors: Tadashi Takahashi, Yasuji Koyama
  • Patent number: 7403299
    Abstract: A search for copyright-related information contained in image data is conducted. If no such information is detected, a database is queried to determine whether it contains copyright-related information corresponding to the image represented by this image data. Information relating to a copyright in accordance with the result of querying the database is added onto the image data. This prevents the unauthorized copying of a copyrighted article in an environment in which digitized copyrighted articles can be exchanged by networking and electronic filing.
    Type: Grant
    Filed: September 22, 2005
    Date of Patent: July 22, 2008
    Assignee: Canon Kabushiki Kaisha
    Inventor: Tadashi Takahashi
  • Publication number: 20080028077
    Abstract: In a wide area Ethernet network, an edge side gateway (EGW) acquires layer 2 tunneling control information from an authentication server when a PADI is received from a user terminal, stores the correspondence between the source address of the PADI and the layer 2 tunneling control information in its management table, encapsulates the PADI in accordance with the layer 2 tunneling control information, and transmits the encapsulated PADI packet to the wide area Ethernet network. A core side gateway (CGW) having received the encapsulated PADI packet stores the correspondence between the tunneling control information and the source address extracted from the received packet in its management table, and forwards the PADI obtained by decapsulating the received packet to a broadband access server. Thereafter, each of the EGW and CGW forward received packets for the user after converting their format by referencing to the management tables.
    Type: Application
    Filed: June 22, 2007
    Publication date: January 31, 2008
    Inventors: Masanori KAMATA, Hiroaki Miyata, Tadashi Takahashi
  • Publication number: 20080011019
    Abstract: A method of manufacturing an optical fiber preform by passing a porous glass preform through a heating area in an atmosphere of dehydration gas to dehydrate the porous glass preform is provided. Values Pcl and V are set and dehydration is performed to satisfy 0.0773×e7.4873×??Pcl×T×L/V according to ?, T, and L, where Pcl is a partial pressure of chlorine gas in the dehydration gas, T is a process temperature, L is a length of an area in the heating area where a temperature is 1150° C. or higher, V is a relative moving speed of the porous glass preform with respect to the heating area, and ? is an average bulk density of a porous glass layer.
    Type: Application
    Filed: March 27, 2007
    Publication date: January 17, 2008
    Applicant: THE FURUKAWA ELECTRIC CO., LTD.
    Inventors: Syuhei Hayami, Tadashi Takahashi
  • Publication number: 20070274649
    Abstract: An endoscope system comprises an electric scope and a light source apparatus. The light source apparatus has a light source and a light control apparatus. The light control apparatus adjusts a quantity of light that is incident to the electric scope, based on a comparison between a scope characteristic that indicates a relative value of the quantity of light that can be incident to the electric scope and a light source total characteristic that indicates a relative value of the quantity of the light radiated from the light source to the electric scope.
    Type: Application
    Filed: April 18, 2007
    Publication date: November 29, 2007
    Applicant: PENTAX CORPORATION
    Inventors: Tadashi TAKAHASHI, Nobuhiro TANI
  • Publication number: 20070274290
    Abstract: A packet forwarding apparatus with a function of registering packet forwarding control information for each user terminal into a user management table during PPPoE connection and authentication phases in which the apparatus carries out predetermined communication procedures with each user terminal. During DHCP and IP forwarding phases following the authentication phase, the packet forwarding apparatus controls packet forwarding based on the user management table. Packets are forwarded in the form of PPPoE frame until the authentication phase is completed and packets are forwarded in the form of Ethernet frame in the DHCP and IP forwarding phases.
    Type: Application
    Filed: May 21, 2007
    Publication date: November 29, 2007
    Inventors: Tadashi Takahashi, Hiroaki Miyata, Takashi Yokoyama, Masanori Kamata